Matsumoto Castle in Nagano Prefecture is one of Japan’s most striking and historically intact feudal fortresses — its dramatic black-lacquered exterior earning it the nickname Karasu-jo (Crow Castle), in deliberate contrast to Himeji’s White Heron. Dating from the late 16th century and set against the backdrop of the Northern Japanese Alps, Matsumoto is among the most visually compelling castle sites in Japan and one of only four castles designated a National Treasure.
History
A fort at Matsumoto dates to 1504; the current main keep was constructed between 1592 and 1594 by the Ogasawara clan, then completed with additional towers by the Ishikawa clan. Unlike most surviving Japanese castles that were rebuilt in the Meiji era or later, Matsumoto’s keep is entirely original — the same timbers, floors, and stone foundation construction from the 1590s. The castle narrowly escaped demolition in 1872 when the new Meiji government sold it at auction; local merchant Ichikawa Ryozo purchased and preserved it, initiating a tradition of public preservation continued to the present.
The Castle Complex
Main Keep (天守閣)
Matsumoto’s main keep is a six-story structure rising 29.4 m above its stone base — relatively modest compared to Himeji, but architecturally complete with its original interior. The extremely steep staircases (some at 61°) and low doorways are authentic features of military castle design, not tourist inconveniences. The 6th floor offers views across Matsumoto city to the Hotaka and Jonen Alps. The castle’s original gun ports (for primitive firearms introduced to Japan in 1543) are among the earliest such features in Japanese castle architecture.
Moon-Viewing Tower (月見櫓)
The three-connected-keep structure at Matsumoto is unique in Japanese castle architecture: the main keep, a smaller “lesser keep,” and the moon-viewing tower (tsukimi-yagura) connected in an L-shape. The moon-viewing tower — added in 1635 for the third Matsumoto lord’s aesthetic purposes — has open railing balconies facing the pond for moon reflection, no gun ports (deliberately), and a refined residential character entirely unlike the military design of the main keep. It demonstrates the shift in early Edo castle function from military fortress to aristocratic residence.